Full Version: Resolution
Okay so here are is my question. I know all the different resolutions (480P 720P....) but my question is if you have an LCD capable of displaying 480P but it only has composite connection on it do you really get 480p? I thought you could only get progressive out of a vga, hdmi, dvi, and component.
QUOTE (sdubb @ Jul 17 2008, 02:08 AM) 
Okay so here are is my question. I know all the different resolutions (480P 720P....) but my question is if you have an LCD capable of displaying 480P but it only has composite connection on it do you really get 480p? I thought you could only get progressive out of a vga, hdmi, dvi, and component.
Technically composite is NTSC 720x480 at 29.97 fps interlaced. It can't do progressive. As you noted only vga, component. hdmi, and dvi
A lot of Lcd's are capable of higher resolutions but they are paired with low quality controller boards that don't allow it.
Like my headrest monitors. All they had was a composite controller. So I had a blurry horrible image. But I bought a VGA controller for them and that allowed for a native 800x480 resolution and up to 1024x768. Now they look razor sharp.
Okay I thought I knew what I was talking about 
those Hanspree TV are 800X600 they sure would be nice but you can only feed them with composite s-video and coax. I guess the main reason I ask is I have this really old projector and its native is 640X480 which I am fine with but I am thinking the best way to feed it will be thru the VGA. It has composite s-video and VGA. I was surprised how well VGA 640X480 looked on my 15" when I had it all set up I thought thats pretty good for a low resolution.
those Hanspree TV are 800X600 they sure would be nice but you can only feed them with composite s-video and coax. I guess the main reason I ask is I have this really old projector and its native is 640X480 which I am fine with but I am thinking the best way to feed it will be thru the VGA. It has composite s-video and VGA. I was surprised how well VGA 640X480 looked on my 15" when I had it all set up I thought thats pretty good for a low resolution.
Lowest common denominator. That's the way that it goes for all audio/video. Whatever the worst part of the system is, that's the best that you can get out of the rest of it.
If you only have interlaced input, that's the best picture that you're going to get.
Caveat: Post-processing can do some pretty impressive things. My PC can take a DVD, which is only 480p at best and upconvert it to 720p on my projector and it looks very good. It can even handle some pretty iffy video file content, some at quite low res, and make it look respectable. I've watched stuff which is 320X240 native upscaled to 1280X960, and it's perfectly watchable, even decent. Similarly, you can take a stereo audio signal, and through Pro-logic or similar technology upconvert it to 5.1 with reasonable results.
So it's possible that the LCD controller has something there to 'upconvert' your 480i signal to 480p, though that takes some processing, and in the end is still pretty much a guess at what's really should be on the screen.
If you only have interlaced input, that's the best picture that you're going to get.
Caveat: Post-processing can do some pretty impressive things. My PC can take a DVD, which is only 480p at best and upconvert it to 720p on my projector and it looks very good. It can even handle some pretty iffy video file content, some at quite low res, and make it look respectable. I've watched stuff which is 320X240 native upscaled to 1280X960, and it's perfectly watchable, even decent. Similarly, you can take a stereo audio signal, and through Pro-logic or similar technology upconvert it to 5.1 with reasonable results.
So it's possible that the LCD controller has something there to 'upconvert' your 480i signal to 480p, though that takes some processing, and in the end is still pretty much a guess at what's really should be on the screen.
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